Growing community of inventors

Brunswick, ME, United States of America

David B MacPherson

Average Co-Inventor Count = 1.67

ph-index = 2

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 19

David B MacPhersonDavid N Pulsifer (1 patent)David B MacPhersonMartin W Greinier (1 patent)David B MacPhersonJay E Paris (1 patent)David B MacPhersonRobert W Foley (1 patent)David B MacPhersonDavid B MacPherson (2 patents)David N PulsiferDavid N Pulsifer (5 patents)Martin W GreinierMartin W Greinier (1 patent)Jay E ParisJay E Paris (1 patent)Robert W FoleyRobert W Foley (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Other (1 from 832,961 patents)

2. The Eastern Company (1 from 345 patents)


2 patents:

1. 4516281 - Sewage treatment device

2. 4409923 - Marine anchor

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as of
1/13/2026
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